Here's why European unity isn't such a bad idea

[Wyrd of Gawd]

There's less of a chance of war breaking out if everyone is in the same gang.  The bad thing is that it reduces the number of top spots down to one and regional heads could get envious 
about being denied the top spot.  That could lead to rebellion, which is what's happening now.  The Brits are ticked that they are not in charge, which is understandable given their history as a world empire.  So why should they have to take orders from some unknown dummies in Belgium?  They want their own glory back.

Put it this way, how would you as an American feel if you were forced to open your border to Mexico and have Canada dictate your affairs?

The people may be upset but what about the guys in the government?  If they want to stay, they stay.